Sending Very Large Attachments with Exchange Online
In this article, Mezba Uddin reviews using Audit Logs and the Graph API to performs six specific investigation actions in Exchange Online to help keep your email environment safe.
Domain controllers are the crown jewels of any Active Directory (AD) deployment. They authenticate every user, enforce every Group Policy Object, and replicate the credentials that keep the business running, making them irresistible to attackers. In this blog, Victor King reviews how to harden your organization against these attacks through ITDR.
Previously, the Graph APIs limited Outlook attachments to a maximum of 3 MB. That limit doesn't exist anymore, but the old method of uploading very large attachments in chunks to make sure that the operation is possible across flaky networks is still useful, so we explain how to do it here using the Microsoft Graph PowerShell SDK.
In this article, James Yip discusses different ways to leverage Intune to run PowerShell scripts as part of endpoint management, specifically for Windows workstations, to perform custom administrative tasks.
AI is supposed to make our lives easier, so how about writing some PowerShell to block out timeslots in a travek calendar when the calendar's owner is on the move? Eventually AI gets the task done, but it needed some coaching and firm instruction along the way.
After a year or so of using the AuditLog Query Graph API, we have enough experience to be able to explain how to take advantage of the API and when it could be used to run audit searches instead of the Search-UnifiedAuditLog cmdlet. There's lots of PowerShell code in this article to give anyone who wants to experiment with the API a good start to finding audit events.
Many tenants have inactive guest accounts, and sometimes in large numbers. Microsoft has made it easy to invite guests but harder for guests to voluntarily leave; overall, the lifecycle management process for guest accounts makes it easy to end up with guest ghosts. Finding out whether you’re a guest ghost host is the purpose of this column.
On April 3, Microsoft announced a 10% increase in prices for on-premises products including Exchange Server SE, SharePoint Server, and Skype for Business SE. Prices for CAL suites also increase with the Enterprise CAL increasing by 20%. The transition to the cloud means that on-premises engineering costs must be met by fewer customers, so it's higher prices all round!
With AiTM phishing attacks on the rise, it is important to have procedures in place to combat future attacks. In this article, we explore three different ways to protect against token theft using Conditional Access.
With the end of support for Exchange Server 2016 and 2019 rapidly approaching on October 14, 2025, organizations that rely on these versions must make a strategic decision for their messaging infrastructure, with Exchange Server Subscription Edition (SE) defined as the destination for Exchange on-premises mailboxes. This article gives practical guidance for the available options moving forward.
Some people say that the Teams usage report (available in the Microsoft 365 admin center) is a great way of finding inactive teams. I consider that viewpoint to be rubbish because the Teams usage report doesn't include all the kinds of activities that a team might host. This article explains how to use audit data to supplement the usage report and create a better view of inactive teams.
Steve and Paul cut through the noise of a million Message Center notifications to bring you the need-to-know on Exchange Online's new sending limits. Plus, security expert Louis Mastelinck schools us on practical Conditional Access – because let's face it, most deployments are a mess.
